"This is not only disruptive, but game-changing," said Jonathan Chaplin from Newstreet, an investment firm focused on the telecom industry. "This move completely marginalizes the voice network by leveraging VoIP over cellular and is extremely threatening to already declining voice margins."

The FreedomPop service will be available on several popular Android phones later this summer and will be the first-ever all-data devices running 100 percent VoIP over cellular networks.

"The quality of over-the-top VoIP services is now at a stage where we can deliver the major mobile services completely free to consumers. FreedomPop is changing the mobile market for good with the sole intent of bringing better value to the consumer," said Stephen Stokols, FreedomPop's CEO and co-founder. "FreedomPop's mission is to ensure that everyone has access to affordable, convenient and essential communication services. With this launch, we've just taken a very big step towards delivering on this promise."

With gross margins of over 50 percent on its 'freemium' products and services, led by outstanding consumer demand and high growth rates, FreedomPop has demonstrated the commercial viability of its model of delivering 4G wireless to the mass market.

FreedomPop is looking to officially launch the service and phones later this summer, but interested users can sign up for early access now at FreedomPop.com/phone.

About FreedomPopFreedomPop provides disruptive mobile services so that no one is left off the "connected grid." Founded in 2011, FreedomPop is rewriting the rules of the American telecoms industry and is backed by Mangrove Capital, DCM and Skype Founder Niklas Zennstom's Atomico. The company offers a suite of devices, services, and innovative social sharing and incentive benefits for mobile and home broadband internet access, providing consumers access to free high-speed Internet nationwide. FreedomPop launched its free broadband service on Clearwire's 4G network earlier this year and went live with Sprint in April 2013. Visit www.FreedomPop.com for more information.